Quarterly report pursuant to Section 13 or 15(d)

Accrued Expenses and Other Liabilities (Details)

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Accrued Expenses and Other Liabilities (Details) (USD $)
In Thousands, unless otherwise specified
Mar. 31, 2013
Dec. 31, 2012
Mar. 31, 2012
Dec. 31, 2011
Accrued Expenses and Other Liabilities        
Payroll and related costs $ 2,776 $ 1,429    
Employee benefits 1,217 2,731    
Accrued warranty 2,859 3,628 3,506 4,188
Other 1,834 2,541    
Accrued expenses and other liabilities $ 8,686 $ 10,329